Range-boiler stand.



O. L. HOLDEN.

RANGE BOILER STAND.

APPLICATION FILED MAR. 26, 1909.

UNITED STATES PATENT OFFICE.

CHARLES L. HOLDEN, OF INDIANAPOLIS, INDIANA.

RANGE-BOILER STAND.

To aZZ whom it may concern:

Be it known that I, CHARLES L. HOLDEN, a citizen of the United States,residing at Indianapolis, in the county of Marion and State of Indiana,have invented certain new and useful Improvements in Range-BoilerStands; and I do declare the following to be a full, clear, and exactdescription of the invention, reference being had to the accompanyingdrawings, and to the letters and figures of reference marked thereon,which form a part of this specification.

This invention relates to stands that are adapted to be adjusted so asto support range-boilers or similar vessels 011 end and which may be ofvarious diameters; the invention having reference more particularly tostands that are adapted to be adjusted to suit either one of three sizesof range-boilers usually manufactured; and an object of the invention isto improve the construction in that class of adjustable stands that areadapted to be spread or contracted equally at their tops and bottoms,particularly of the knock-down variety that are composed of relativelyfew parts and are adapted to be quickly set up and adjusted to suit theparticular size of boiler or tank that the stands support, the end inview being to provide means whereby the principal parts of the stand maybe securely fastened togther after having been adjusted and connected soas to be of the required size.

With the above-mentioned and other objects in view the inventionconsists in an improved stand having a plurality of combined leg-and-armmembers provided with looking devices, and a combined connector andclamp for keying and clamping the leg-and-arm members adjustably anddetachably together; and the invention consists further specifically inthe novel parts, and combinations and arrangements of parts, ashereinafter particularly described and claimed.

Referring to the drawings, Figure 1 is an elevation of the improvedstand with a range-boiler thereon partly broken away; Fig. 2, ahorizontal sectional view on the line A A in Fig. 1; Fig. 3, a top planof one of the combined leg-and-arm members; Fig. 4, an inverted planView of the stand; Fig. 5, a fragmentary vertical sectional Viewapproximately on the line B B in Fig. 2; Fig. 6, an inverted perspectiveview of the main Specification of Letters Patent.

Application filed March 26, 1909.

Patented Aug. 20, 1912.

Serial No. 485,954.

part of the combined connector and clamp; Fig. 7, a top plan of the mainpart of the connector and clamp with which one of the leg-and-armmembers is connected; and Fig. 8, a perspective view of the clamp-plate.

Similar reference characters in the different figures of the drawingsindicate like parts or features of construction.

As preferably constructed the improved stand comprises three supportinglegs a, a, a, and three arms Z), Z), 6, for supporting the boiler orsimilar vessel, a leg and an arm being cast together as one piece andhaving an extension 0 thereon at the junction of the leg and the arm,all comprising one conibined leg-and-arm member, the members being ofidentical construction. On one side of each extension a suitable numberof tapering keys, as d, e, f, are cast so as to project laterally, thekeys being vertical in use and are less in diameter at their upper endsthan at their lower ends. The keys are spaced apart to suit therequirements for the different usual sizes of boilers. The top of theextensions are straight and are at right an gles to the keys so thatwhen in use the tops of the extensions are in a horizontal plane. Thetop of each arm has a pair of upwardly extending lips g and it to guidethe boiler.

The combined connector and clamp comprises an apertured plate 21 whichpreferably has a central squared bolt hole 7' therein, and the plate hason the under side thereof an annular boss lc extending about the bolthole. In the plate are three slots Z, Z, Z, extending inwardly from theperiphery of the plate toward the center thereof, and in the slots nearthe periphery of the plate are projections m, m, m, each projectionhaving a tapering keyway n therein which is greater in diameter at itslower end than at its upper end, the projections extending aconsiderable distance beyond the bottom of the plate and also extendingslightly above the plane of the top of the plate. In the slots are alsoprojections 0, 0', 0", which are arranged oppositely to the otherprojections at the opposite sides of the slots and extending bothdownward and upward beyond the under and upper sides of the plate, theprojections that extend upward from the plate being adapted to withstandgentle hammering when connecting the parts of the stand together. Theplate has strengthening ribs p on the under side thereof that extendnear the periphery of the plate between the projections, and also ribs gare formed on the under side of the plate that extend along one side ofeach slot from the boss 7 to the projection that has the lteywaytherein. A carriage bolt 1' is 'n'eferably inserted in the bolt hole jand has a thumb-nut s thereon. A clamp plate If cast with a central holeu therein to receive the bolt, and the plate has three radiallyextending arms 1', c, 4/, adapted to engage the under sides of theextensions c of the combined leg-and-arm members, each arm and platehaving a downwardly extending strengthening rib 10 on the under sidethereof and two opposing flanges a" on the top thereof, the flangesengaging opposite sides of the extensions 6 so as to assist in holdingthe leg-and-arm members rigidly in case the stand is shifted when it issupporting the boiler. he bolt 1' extends through the hole a and the nuts engages the under side of the plate 2.

hen the boiler 3 is of the smaller size in diameter the keys (Z areplaced in the key- 'ays n with the extensions in the slots that areformed in the plate 1. and in ordcrto adjust the stand to suit thelarger sizes of boiler the leg-and-arm member. are moved outward orapart so that the keys 0 or f may be placed in the keyways. The plate 2'is preferably composed of malleable iron, and inasmuch as the openingsbetween the projections in the slots and also the thickness of theextensions 0 may vary slightly, it will be apparent that the plate mayyield slightly while being driven down into engagement with theextensions 0, the object being to bring the top of the plate flush withthe tops of the extensions which will indicate that the leg-and-armi'nembers will stand at the correct predetermined angles. It will beobserved that when the arms are spread apart for the larger boiler thelegs also will be spread apart so as to firmly support the boiler, andin order to enable the stand to be shifted about when setting up theboiler so as to bring it in proper position for connecting pipesthereto, the clamp plate t being tightened will prevent the legand-armmembers from becoming loose in the connector plate, the plate i alsoreinforcing the legs.

The plate i which serves with the keys on the extensions 0 to indicatethe degree of adjustment of the leg-andarm members required, andpositively and accurately keys the members together, may be formedotherwise than as shown in detail, variations in structure beingcontemplated within the scope of the claims, without sacrificing theadvantages of maintaining uniform degree of angularity of the members inthe different adjustments thereof.

Having thus described the invention, what is claimed as new, is-

1. In a range-boiler stand, the combination with a. plurality ofsupporting members having extensions thereon provided with tapering sideportions, of the hereindescribed connector consisting of a plate havingon one side thereof a plurality of pairs of opposing projectionsengaging said tapering side portions, the opposite side of said platehaving projections thereon that are each substantially an extension ofone of each pair of opposing projections, a bolt engaging said plate,and a plate connected to said bolt and engaging said extensions oppositethe larger ends of said tapering portions.

2. In a range-boiler stand, the combination of a plurality of supportingmembers having wedging devices, a plate having wedging devicescooperating with the wedging devices of the supporting members, saidwedging devices permitting said members to be adjustably moved bodilyeach toward or from the middle of said plate and holding said memberswhen adjusted in substantially parallel position relatively each to theother, and means cooperating with said plate and said members acting toforce relative sliding movement of said wedging devices for rigidly andsecurely holding said members in adjusted position.

In testimony whereof, I aflix my signature in presence of two witnesses.

CHARLES L. HOLDEN.

Vitnesses P. A. HAVELIQK, E. T. Srnvrns.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of latents, Washington, D. C.

